Members of his father's family have been royal courtiers for three generations — including his twin sister Laura, who was a lady-in-waiting to Diana, Princess of Wales.
[2] Greig began his career as a reporter for the South East London and Kentish Mercury newspaper, before joining the Daily Mail and then Sunday Today.
The campaign led to a Dispossessed Fund, which raised over £9 million for grassroots groups addressing poverty and has helped more than 100,000 people, including the homeless and unemployed.
[15] His 2011 book, The Kingmaker is about his grandfather, Louis Greig, who became mentor, physician and friend to Prince Albert, the future King George VI.
[18] On 25 November 1995, Greig married Kathryn Terry, who is originally from Texas, United States; the couple have three children, a son and two daughters.